Specification

Types Of Screw Heads

High-strength screws are an indispensable part of products that need to be fastened. There are many screw specifications, materials, colors, and head shapes. The commonly used screw head types generally include pan head, flat head, countersunk head, hexagonal head, and large flat head. , round head, etc. What are the characteristics of different head-shaped screws? What kind of places are they suitable for

Truss head screws are also as known as large head screws. Generally, truss head screws are used because the head of this screw is larger in diameter than the head of ordinary screws, and the force-bearing area is larger, and the product is not easily damaged at the screw connection. Normally used between plastic parts. beside truss head screws, they are many types screw heads. like the below listing.

Pan head: pan head screws and bolts, After assembly, the head of the screw is protruding from the surface of the object to be connected. The more common drive types of pan head screws are Phillips, slotted drive, and Pozi. It is generally used on internal workpieces or workpieces that are all invisible.

Flat head screw: Flat-head screws can also be called thin-head screws. When a flat-head screw is screwed into a product, the head will not be flush with the surface of the product like a countersunk screw but will be exposed outside. The angle between the head of the flat-head screw and the connecting part of the bolt is 90 degrees, and the head of the flat head screw is very thin, which is more suitable for the connection of precision parts such as mobile phones and watches.

Countersunk head screw: The head of the countersunk head screw is like a funnel. This kind of screw is mainly used for fixing thin plates. After the whole head of the screw is fastened, it will be on the same level as the fastened object without protruding, The product looks beautiful and generous. This kind of fastening connection is generally used on the surface of the external workpiece to make the surface of the workpiece smooth.

Hex head screw: Hexagonal head screws are also called outer hexagonal screws and outer hexagonal bolts. For screws with hexagonal head HM5 and above specifications, a hexagonal head should be considered when the locking torque is large and the load is strong. It mainly has the advantages of easy fastening, and disassembly, and not easy to-slide corners. At present, there are three main materials for hexagon socket screws on the market: carbon steel, stainless steel, and copper. Widely used in various industrial fields.

Round head screw: Round head plastic screws have high-quality features such as insulation, non-magnetic, corrosion resistance, aesthetics, and never rust. The materials used for round head plastic screws are becoming more and more diverse, their performance is continuously improving, and their application fields are becoming wider and wider. Used in the medical machinery industry, wind energy, aviation, office equipment, petrochemical industry, and other industries.

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